Injector



H. P. OOLVIN.

(ModeL) INJECTOR. y

Patented Aug. 26, 1884.

WITNESSES:

UNITED STATES PATENT @FMCE HENRY F. GOLVlN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE RUE MANUFACTURING COMPANY, OF SAME PLAGE.

INJECTOR.

SPECIFICATION forming part of Letters Patent No. 303,986, dated August 26, 1884.

Application filed March 10, 1884. (Mulch) T (1Z6 whom it may concern: and supplies the boiler. 'hen water is to be Be it known that I, HENRY F. COLVIN, a lifted, the valveG is opened and ajet of steam citizen of the United States, residing in the admitted into the branch (1 of the lifter F, and, 45

city and county of Philadelphia, State ofPennpassing through the body thereof, enters the 5 sylvania, have invented a new and useful Inibranchf aiid discharges through the valve G.

proveinent in Injectors, which improvement This produces a partial vacuum in the injectis fully set forth in the following specification or, and the water is caused thereby to enter and accompanying drawings, in which the injector, the latter then being worked by SC) Figure l is a longitudinal verticalv section of steam through the main and regulating tubes an injector embodying my invention. Fig. 2 O D, the valve G being duly closed.

is a transverse section in line a: m, Fig. 1. It will be seen that both the main steam- Similar letters of reference indicate corretube and surrounding regulating-tube force spending parts in the two figures. into the tube E, the latter being without any 55 My invention consists of an injector having openings in its walls. certain novel features, and provided with a The lifter may be set to any angle or point lifter, as will be hereinafter fully set forth. between the injector and cheek-valve, the tube Referring to the drawings, A represents the F readily turning, and when the parts are adbody or shell of the injector, and B an extenjusted the union or coupling F holds the same 60 sion-piece screwed thereto, said piece having securely in position. its bore the entire length thereof, and said Having thus described my invention, what I body having three branches, a b 0. claim as new, and desire to secure by Letters 0 represents the main steamtube, D the Patent, isregulating steam-tube, and E the combining 1. 'A lifter, F, consisting of the tubular 6 5 and discharge tube, formed in one piece, withbranches 0 5/, which are in the axial line of the 2 5 out any space between them, and having a cirinjector, and the tubular branches (1 f, which cumferential flange, E, which is clamped bearearranged transversely thereto, in combitween the ends of the body A and extension nation with steam-pipes and water-pipes and B, thus firmly holding the said tube E in pcthe overflow-valve G, attached to limb f, sub- 70 sition. stantially as set forth. F represents a lifter consisting of a body 2. A lifter, F, for an injector, consisting of formed with four branches, (Z c f g, the branch the tubular branches 0 g, which are in the axial 6 being screwed to a tube, F", the latter being line of the injector, and the tubular transverse coupled with the extension B. Attached to branches (If, in combination with the flanged 75 the branch f is a valve, G. pipe F, which is screwed into branch e, and 3 5 Steam enters the main and regulating tubes a cap, F, which is screwed on the injector, O D, and water is admitted into the body A and ClZLD'lPS the flange of pipe F against the through the branch Z), the steam and water latter, but allows the axial movement of said passing through the combining and discharge pipe, substantially as set forth. tube E and pipe F, and so enters the body F, H. F. OOLVIN. 40 which acts as an overflow, the valve G being Witnesses:

open. When the injector is in operation, the A. P. GRANT, valve G is closed and water properly enters O'r'ro BINDER. 

